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ARS Home Office of Communications Images Photos Jul07





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Image Number D**823-1** At an APHIS quarantine facility near Weslaco, Texas, ARS technician Ann Vacek measures growth of *Arundo donax* plants exposed to the *Tetramesa romana* wasp (left enclosure) and plants not exposed (right enclosure).   Photo by John Goolsby.  640 pixels wide: (d823-1.jpg)   Please visit our Image Gallery


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